What is Algebra? Definition and Examples
Updated: 2024-10-15 19:41:25
Algebra is a fundamental skill that is widely used in school and in life. This article takes a look at what algebra is and its vital role in math.- Algebra is a fundamental skill that is widely used in school and in life. This article takes a look at what algebra is and its vital role in math.
Telling Time Quiz
Updated: 2024-10-15 19:41:25Telling time quiz - Learn to tell time ( It's three o'clock, It's a quarter past 2, etc... Subtraction Calculator
Updated: 2024-10-15 19:41:25
Split a Bill According to Income Calculator
Updated: 2024-10-15 19:41:25This calculator will split a bill according to income so everyone can have a fair share.Scientific Notation Calculator
Updated: 2024-10-15 19:41:25
Ordering Fractions Calculator
Updated: 2024-10-15 19:41:25
Multiplication Game
Updated: 2024-10-15 19:41:25A very interactive multiplication game that will really help you sharpen your basic mathematics skills. Long Multiplication calculator
Updated: 2024-10-15 19:41:25Use this simple long multiplication calculator to strengthen your multiplication skills.Math Millionaire - Review Basic Math skills
Updated: 2024-10-15 19:41:25Math millionaire will help you review basic math skills in a fun and engaging wayLong Addition Calculator
Updated: 2024-10-15 19:41:25
Integers Game
Updated: 2024-10-15 19:41:25Our exciting Integer Game! will help you master adding, subtracting, multiplying, and dividing integers while having fun.Fractions Calculator
Updated: 2024-10-15 19:41:25This fractions calculator will help you add, subtract, multiply, and divide an unlimited number of fractions from the simplest to the most complex expressionFinger Multiplication
Updated: 2024-10-15 19:41:25
Long Division Calculator
Updated: 2024-10-15 19:41:25Use this simple long division calculator to master division concepts with clear step-by-step explanationsBasic Math Calculator
Updated: 2024-10-15 19:41:25Use these basic math calculator to strenghten your basic math skills.Adding Game
Updated: 2024-10-15 19:41:25A very interactive adding game that will really help you sharpen your basic mathematics skills. Adding and Subtracting Fractions Step by Step
Updated: 2024-10-15 19:41:25Use this adding fractions calculator to add or subtract an unlimited number of fractions step by step.Add and Subtract Integers Calculator
Updated: 2024-10-15 19:41:25add and subtract unlimited integers step-by-step with this calculatorHelp the Fisherman
Updated: 2024-10-15 19:41:23From time to time, the homework for my PRIMES STEP students includes questions that are not exactly mathematical. Last week, we had the following physics puzzle. Puzzle. A fisherman needed to move a heavy iron thingy from one river’s shore to another. When he put the thingy in his boat, the boat lowered so much […]Grigori Perelman’s Puzzle
Updated: 2024-10-15 19:41:23Have you heard of Grigori Perelman? If you like math, you probably have. He is one of the most renowned mathematicians in the world. I recently got a book on the Leningrad Mathematical Olympiads (scheduled for publication in English in 2025) and found Grigori’s name there. He authored one of the Olympiad problems from 1984. […]Gelfand Seminar
Updated: 2024-10-15 19:41:23Before moving to the US, I attended the Gelfand seminar and took some pictures. I was a regular participant and have some bittersweet memories from that time. I’ve written about my experiences in several blog posts related to Gelfand, who was my advisor. The year was 1990, and I just acquired my first camera. I […]Fibonometry
Updated: 2024-10-15 19:41:23The term fibonometry was coined by John Conway and Alex Ryba in their paper titled, you guessed it, “Fibonometry”. The term describes a freaky parallel between trigonometric formulas and formulas with Fibonacci (Fn) and Lucas (Ln) numbers. For example, the formula sin(2a) = 2sin(a)cos(a) is very similar to the formula F2n = FnLn. The rule […]Fibonacci Tricks
Updated: 2024-10-15 19:41:23Consider the following Fibonacci trick. Ask your friends to choose any two integers, a and b, and then, starting with a and b, ask them to write down 10 terms of a Fibonacci-like sequence by summing up the previous two terms. To start, the next (third) term will be a+b, followed by a+2b. Before your […]A Hat Puzzle with a Twist
Updated: 2024-10-15 19:41:23I love hat puzzles, and this one, posted on Facebook by Konstantin Knop, is no exception. Share:Root Calculator(√)
Updated: 2024-10-10 21:52:38Find the root of any number such as the square root, cube root, along with step-by-step explanationsAdding and Subtracting Polynomials Calculator
Updated: 2024-10-09 15:53:19Add and subtract polynomials with this calculator. See step-by-step how the answer was foundSam’s Locks
Updated: 2024-10-08 20:38:49A while ago I took writing lessons with Sue Katz. Below is my homework from 2010 (lightly edited). If I remember correctly, this piece was inspired by Sam Steingold. —My friend Sam installed six locks on his door to protect himself from burglars.—I know. I visited your friend. He has six very cheap locks. Any […]Factors Calculator - Step-by-Step
Updated: 2024-10-08 14:47:23Use this factors calculator to display all factors of a number and see step-by-step explanationsOnline Age Calculator - How Old are You?
Updated: 2024-10-08 09:32:40How old are you? This online age calculator to find your age to the nearest second.Percentage Calculator - Step-by-Step
Updated: 2024-10-07 13:57:27
Percentage Change Calculator
Updated: 2024-10-07 11:12:31The percentage change calculator will compute the percentage increase/decrease and show you step-by-step solutionAverage Calculator
Updated: 2024-10-07 08:39:39
Cube Calculator - Step-by-Step Solutions
Updated: 2024-10-04 14:31:59The cube calculator will find all values (step-by-step) when either the side length, volume, surface area, face diagonal, or solid diagonal is givenDecimal to Fraction Calculator
Updated: 2024-10-04 04:09:57
Pythagorean Theorem Calculator
Updated: 2024-10-02 13:40:56
Circle Calculator
Updated: 2024-10-02 10:21:34The circle calculator will find 3 values when either the area, the circumference, the radius, or the diameter is givenLeast common multiple calculator
Updated: 2024-10-01 10:54:35This easy to use least common multiple calculator will help you find the smallest multiple two numbers have in common.Greatest Common Factor Calculator
Updated: 2024-10-01 10:33:58Use this easy to use greatest common factor calculator to find the highest factor two numbers have in common.